Mop frame



FIG. 1 is a front left perspective view of a mop frame that shows our new design;

FIG. 2 is a front right perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is bottom view thereof; and,

FIG. 9 is a front left perspective view in an open position thereof.

The even broken lines showing the remainder of the mop frame are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a mop frame, as shown and described. 